Replacing Yokogawa AAI835: Wiring and Barrier Checks Before Swap
Before replacing a Yokogawa AAI835, verify the 4-in/4-out channel map, power-loss loop behavior, barrier type, output load, cable, and redundancy.
Manufacturer: ABB
Product No.: NTDI02
Country of origin:Sweden
Product Type: Digital I/O Termination Units
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 360g
Dimensions: 50 x 180 x 330 mm (W x H x D)
Shipping port: Xiamen
Warranty: 12 months
ABB NTDI02 is a Digital I/O Termination Unit (Hot Switch) designed for ABB S+ HR I/O systems and Symphony Harmony INFI 90 control system applications. The unit provides termination functionality for digital I/O and analog output related modules within ABB control system architectures.
The NTDI02 Digital I/O TU (Hot Switch) is used with ABB I/O modules including DSI, DSO, DSM, SET, SED, ASO, HSS, FCS, NKTU, NKST, and NKSD. It functions as a Module Termination Unit for field signal connection and I/O system integration. :contentReference[oaicite:0]{index=0}
The ABB NTDI02 is part of the ABB S+ HR I/O termination unit product family and is categorized under S+ HR I/O - Termination Units. :contentReference[oaicite:1]{index=1}
| Parameter | Specification |
|---|---|
| Product ID | NTDI02 |
| ABB Type Designation | NTDI02 |
| Catalog Description | Digital I/O TU (Hot Switch) |
| Long Description | Use with DSI, DSO, DSM, SET, SED, ASO, HSS, FCS, NKTU, NKST, NKSD |
| Display Name | NTDI02 |
| Product Type | Module_Termination_Unit |
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | NTDI02 |
| Product Type | Module Termination Unit |
| Function | Digital I/O TU (Hot Switch) |
| Compatible Modules | DSI, DSO, DSM, SET, SED, ASO, HSS, FCS, NKTU, NKST, NKSD |
| Product Category | S+ HR I/O - Termination Units |
| System Category | S+ HR I/O |
| HS Code | 853710 |
| Customs Tariff Number | 85371091 |
| Product Net Depth / Length | 330 mm |
| Product Net Height | 180 mm |
| Product Net Width | 50 mm |
| Product Net Weight | 0.3 kg |
| WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) |
| Number of Batteries | 0 |
| Interface | Function |
|---|---|
| DSI | Compatible ABB I/O module connection |
| DSO | Compatible ABB I/O module connection |
| DSM | Compatible ABB I/O module connection |
| SET | Compatible ABB I/O module connection |
| SED | Compatible ABB I/O module connection |
| ASO | Compatible ABB I/O module connection |
| HSS | Compatible ABB I/O module connection |
| FCS | Compatible ABB I/O module connection |
| NKTU | Compatible ABB I/O module connection |
| NKST | Compatible ABB I/O module connection |
| NKSD | Compatible ABB I/O module connection |
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Returns & Warranty



Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Green
|
| Country of origin |
Sweden
|
| Power source |
DC Power
|